The IMAM Ro.67 was the sole design tendered by the Breda Group, through its southern subsidiary IMAM, to the second round of the Caccia Combattimento competition in 1939. It was powered by three DB-601s in a traditional configuration (tractor propellers) armed with three 20 mm guns. The crew was of two. Relevant dimensions were: length 12,30 m; span 15,60; calculated empty weight 4960 KG; wing surface 36 sqm; calculated empty weight 4,960 KG; max speed at 5,200 m 620 KM/h (estimated) ; max range 1500 KM.
Regia Aeronautica was skeptical of the design, because the high installed power (3150 hp) translated in a max speed of only 620 KM/h. Nevertheless the Ro.67 was deemed acceptable and two prototyped ordered (serials MM.431-432). At the end of 1939 the unexpected: IMAM decided to retire its tender of the Ro.67 offering a derivative of the Ro.57 (a competitor for the contemporary Caccia Intercettore competition) with a crew of two and two DB-601. The Ro.58 was considerably smaller and was actually built later in one example that flew in 1942. But this is another story. The Ro.67 was definitively cancelled in March 1940 and the first serial of the intended prototypes was transferred to the Ro.58.